package com.liyongzhen.mapper;
import com.liyongzhen.anno.Log;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;
import com.liyongzhen.pojo.Emp;

import java.time.LocalDate;
import java.util.List;

@Mapper
public interface EmpMapper {
    @Select("select count(*) from emp;")
    public Long count();
    /*
    *分页查询，获取列表数据
    * */
   // @Select("select * from emp limit #{start},#{pageSize};")
    public List<Emp> page(Integer start, Integer pageSize, String name, Short gender, LocalDate begin,LocalDate end);
    /*
    * 批量删除的方法
    * */
    @Log
    void delete(List<Integer> ids);

    /*
    * 新增员工
    * */
    @Log
    @Insert("insert into emp(username, name, gender, image, job, entrydate, dept_id, create_time, update_time)" +
            "values (#{username},#{name},#{gender},#{image},#{job},#{entrydate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);
/*根据id查询员工*/
    @Select("select * from emp where id = #{id}")
    Emp getById(Integer id);
    @Log
    void updata(Emp emp);

    @Select("select * from emp where username=#{username} and password=#{password}")
    Emp getByUsernameAndPassword(Emp emp);

    //根据部门id来删除部门底下所有员工
    @Log
    @Delete("delete from emp where dept_id = #{deptId}")
    void deleteByDeptId(Integer deptId);
}